Question

The odometer of a car read 2000 kilo meter at the start of the trip and 2400 km at the end of the trip took 8hour calculate the average speed of the car in km per second and meter per second​

Answer 1

Answer: 13.88 m/s

Step-by-step explanation:Given :

Initial odometer reading=2000km

Final odometer reading=2400km

Total distance= Final distance- Initial distance

=2400-200=400km

Total time=8h

Average speed =?

Formula to be used :

Average speed= Total Distance/Total time

Average speed in Km/hr:

Average speed=400/8

=50 km/hr

Average Speed in m/s:

1km/hr=5/18 m/s

∴50km/hr=50x5/18=250/18=13.88m/s

Answer 2

Answer:

1/72

Step-by-step explanation:

Total distane travelled=(2400-2000)km

=400km

Total time taken =8hrs (as per the ques.)

Average speed= Total distance covered/Total time taken

In the ques.,

Answer is to be given in km/s

1hr= 3600sec

Therefore,

8hrs=2880sec

Average speed= 400/28800

=1/72Ans